How does color blindness develop?

Color blindness is due to a genetic defect.
Color blindness is a common disease in ophthalmology, which refers to the inability of patients to distinguish between two or more different colors, and the common types include red-green color blindness, blue-violet color blindness, and total color blindness.
Color blindness is caused by genetic defects, resulting in abnormal development of the cells in the retina that sense color, thus manifesting the clinical symptoms of color blindness. Usually, the causative gene is located on the X chromosome, and the mode of inheritance is companion inheritance.
Patients suspected of having color blindness should go to the ophthalmology department of the hospital for examination in time, and the doctor can confirm the diagnosis by using the color blindness atlas for examination. There is currently no effective treatment for color blindness.